Harrison, Jason
Current rating: 1329
Record: 2-12-1
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1379 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 27 | Sanchez, Brec (1424) | Lost 1-2 | -171362 |
| 2standard | 91 | Matthews, Sean (1426) | Lost 1-2 | -171345 |
| 3standard | 152 | Lamantia, Robert (1465) | Lost 0-2 | -161329 |
| top | average opponent: 1438record: 0-3 | new rating: 1329 | ||
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 36 | Montgomery, Justin (1500) | Lost 0-2 | -171396 |
| 2standard | 316 | Sybert, Jonathan (1439) | Lost 0-2 | -171379 |
| 3standard | 408 | Laranang, Ryan (1394) | Won 2-1 | +181397 |
| 4standard | 375 | Luck, Cody (1391) | Lost 0-2 | -181379 |
| top | average opponent: 1431record: 1-3 | new rating: 1379 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 79 | younger, Pat (1497) | Lost 1-2 | -171428 |
| 2extended | 336 | O'Dea, Brian (1482) | Lost 1-2 | -171411 |
| 3extended | 387 | Braun, Cody (1464) | Won 2-0 | +191430 |
| 4extended | 388 | Griffin, Blair (1482) | Lost 0-2 | -171413 |
| top | average opponent: 1481record: 1-3 | new rating: 1413 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 224 | Sutton, Christopher (1438) | Lost 0-2 | -191481 |
| 2extended | 255 | Wellington, Larry (1482) | Lost 0-1 | -181463 |
| 3extended | 299 | Kuykendall, Kirk D (1464) | Draw 0-0 | 01463 |
| 4extended | 321 | Groves, Russell (1465) | Lost 0-2 | -181445 |
| top | average opponent: 1462record: 0-3-1 | new rating: 1445 | ||